Lucifer is a central character in the anime series Sin: Nanatsu no Taizai, which explores the theme of the Seven Deadly Sins embodied by beautiful women. Initially an archangel, Lucifer is cast out of Heaven for her pride and becomes the Demon Lord of Pride, one of the Seven Mortal Sins. Her journey involves seeking revenge against Heaven and reclaiming her position. She is portrayed as a strong and rebellious character, often challenging her own limitations and the hierarchy of the demon world while forming alliances with other sins.